Thats true...shape shifting would be a definite asset. I contemplated choosing that, but ultimately chose Invisibility because of the obvious things you could do. Then again, I didn't think of shapeshifting and turning into something so small you can't be seen (reaping the same benefits as invisibility). Additionally, you could shapeshift into a helicopter (reaping the same benefits as flying). Really...you could even change into an X-Ray machine for X-Ray vision, lol.
So hell...I'd like to change my vote to Shapeshifting please! J Wikoff has chosen the superior superpower.